1986•Sov. Radiochem. (Engl. Transl.); (United States)Requires access
A combined gamma-alpha method of determining plutonium isotope compositions
V.V. Berdikov, Suvorov
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Abstract
A combined method is used for determining the isotopic composition of plutonium made in a power station reactor, which uses gamma and alpha spectrometry. The scope for gamma spectrometry was determined from the gamma spectra of eight plutonium specimens having isotope compositions similar to that of spent VVER fuel. When the data from all the series were used, the plutonium 242/plutonium 239 ratio was found as 0.020 + or - 0.005. The advantages of the method relative to mass spectrometry are the rapidity (1-2 h) and the lower cost of the apparatus.